我可以通過文件路徑/使用它自己縮小SQL數據庫日誌文件嗎？

Question

我正在設計一個程序，通過網絡收縮數據庫日誌文件。

日誌文件不一定總是相同的格式，所以我想通過路徑名縮小它。爲了讓此刻的路徑名稱我寫：

select top 2 physical_name as current_file_location FROM sys.master_files where physical_name like '%adventureworks%' 

我的腳本來收縮日誌文件是：

ALTER DATABASE adventureworks2012 SET RECOVERY SIMPLE DBCC 
SHRINKFILE ('c:\Program Files (x86)\Microsoft SQL Server\MSSQL10.50\MSSQL\DATA\adventureworks2012_log.ldf', 1) 
ALTER DATABASE adventureworks2012 SET RECOVERY FULL 

這將返回錯誤：

Could not locate file 'c:\Program Files (x86)\Microsoft SQL Server\MSSQL10.50\MSSQL\DATA\AdventureWorksLog.ldf' for database 'AdventureWorks' in sys.database_files. The file either does not exist, or was dropped.

是否有一個我可以讓它選擇自己，而不管日誌文件的命名約定如何？

Answer 1

最好的解決方案是從原始選擇列表中獲取ID並使用它來縮小它。

select top 2 file_id, physical_name as current_file_location FROM sys.master_files where physical_name like '%adventureworks%'

然後在我的第二個腳本：

DBCC SHRINKFILE (2,1)

Answer 2

Declare @string Varchar(8000), @Strt Int ,@End Int 
    select name INto #tt from sys.databases where is_read_only=0 and state=0 
    and name NOT In ('master','model','tempdb','msdb') 

    Select ROW_NUMBER()Over(Order by Name)SRNO,name INto #TTT from #tt 
    Set @Strt=1 
    Select @End=Max(Srno)from #ttt 

    While @Strt<=@End 
    Begin 
     Declare @Db Varchar(255),@str varchar(Max) 
     Select @Db=Name from #ttT Where Srno=@Strt 
     Set @str='' 
     Select @str= 'ALTER DATABASE '''+Name+''' SET RECOVERY SIMPLE' from #tTt Where Srno=@Strt 
     --Exec (@str) 
     DBCC shrinkdatabase (@Db) 
     Print @Db 
     Set @Strt=@Strt+1 
    End 

Drop Table #tt 
Drop Table #ttT